i’d say that it would be the case of turning her down with her parents present as in some sort of intervention.

also, speak to her firmly, avoiding second interpretations, that the two of you cannot be involved in any way, and if she continues her behaviour she will face legal consequences. time to learn that if you f*ck around, you’ll find out.

that ending a relationship that isn’t working is also my responsibility, instead of postponing it, thinking “this time things will be alright” or “if i break up, everyone will think wrong of me” and letting dissatisfaction grow inside me, turning myself into an *sshole.